CONCLUSION: the shield guard method for wires and the output current compensating method for current source can effectively improve the stability of current source's output current.

结论：所采取的电极导线屏蔽驱动和输出电流补偿的方法可以达到有效提高恒流源输出电流稳定度的目的。

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One security guard used it as a shield against the torrent of people that streamed into the store.

有个保安把该门板用作盾牌，抵挡涌入商场的人潮。

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Now this shield is driven by a unity-gain, low impedance amplifier (Guard).

这个屏蔽由一个单位增益的低阻抗放大器(保护)驱动。

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The North Atlantic Treaty Organization is pursuing plans for a Europe-based shield that would guard against Iranian missiles.

WSJ: Iran Tests Missiles a Day After EU Embargoes Oil

While an apron covers one-third of the body, the Cellular-guard shield blocks but a fraction of radiation hitting the brain.

FORBES: Shield Sham

Other examples include reports of the administration's use of untraceable BlackBerry messages to guard communications, and efforts to shield Mr. Cuomo's attorney general archives from public inspection.

WSJ: Cuomo Staff Penned Praises for the Boss